2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $5,000,000 $10,000,000 $15,000,000 $20,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,159,769 | 2,865,358 | 870 |
| 2006 | $9,474,342 | 2,388,428 | 875 |
| 2007 | $12,030,045 | 2,974,793 | 642 |
| 2008 | $17,446,317 | 4,575,534 | 878 |
| 2009 | $9,770,180 | 3,239,187 | 627 |
| 2010 | $8,972,935 | 3,056,115 | 594 |
| 2011 | $16,352,592 | 3,810,800 | 626 |
Note: Quantity represents Number of items
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